Mid 2009 Model A1278 / 2.26 or 2.53 GHz Core 2 Duo processor EMC 2326

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Poor charging from magsafe connector

The magsafe connector on the original charger packed up and stopped charging the battery. It was definitely fault at the plug end but a spare charger from a dead laptop using the 60W worked. Replaced charger with new one with the offset plug.This stopped working when placed so that the USB ports were not blocked and had to be used in the other orientation..

Currently the green LED turns orange but the energy indicator shows a plug icon and flickers between the battery icon. As unit gets older more and more fiddling to get a solid connection is needed to show the lightning bolt (charging) icon. Once charge gets up to 100% LED turns green but I can only sure of charging while laptop is open

How to tell if I need to replace DC in board or go for yet another charger?

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Chosen Solution

The end on the charger, by your description, is wrong. You can have an orange connection when the ground is poor or missing... your fiddling with it gets it working. You might have crud in the magsafe port, examine it closely. If needed clean it out (without removing) using a plastic or wooden toothpick or old toothbrush.

If the port is clear try a magsafe with the same end configuration as your original. If it still flickers and is orange then I'd change the DC-in board.

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I will give that a try. Other reading I've done suggests that the connection in the magsafe port is more sensitive to crud than I had originally thought.

I have cleaned some gunk out but I'll do a better job on it and report back. Could be a few days - life is busy here and it seems to be working ATM.

I REALLY don't like the new style of offset plug. The reversibility of the original style was a big plus.


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